seekayess said
"Call me ultra-careful or what you will, but I have ALWAYS paid for, and had the Norton Anti Virus on!
And I find it more than adequate!"
From Macos.com
"I would concur that Nortons causes more trouble than it solves. At present, there are no viruses on the Mac. There are a couple of legitimate antivirus products such as Norton's, Virex and ClamAV.
Of the three I mentioned, Norton's is the one I'd avoid the most because of the number of ways in which it hooks into the system, scanning everything in "real time" as it is written to the hard drive. This is intended to be more thorough, but in essence it just means that it can easily screw up your system."